1 ADJ-GRADED 无害的;(尤指对健康)不造成伤害的 Something that is harmless does not have any bad effects, especially on people's health. 无害的;(尤指对健康)不造成伤害的
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Industry has been working at developing harmless substitutes for these gases.
该行业一直在努力开发一些可以替代这些气体的无害物质。
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This experiment was harmless to the animals.
这个试验不会对动物造成伤害。
SYN safe, benign, wholesome, innocuous
2 ADJ-GRADED 无关紧要的;不讨人厌的;不会惹麻烦的 If you describe someone or something as harmless, you mean that they are not important and therefore unlikely to annoy other people or cause trouble. 无关紧要的;不讨人厌的;不会惹麻烦的
SYN inoffensive, innocent, innocuous, gentle
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It started harmlessly enough, with a statement from the Secretary of State for Social Security.
开始时并没有什么重要内容,由社会保障大臣作了一个发言。
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